When “warp” and “weft” yarns cross at 90-degree angles, the result is common cloth. But when small yarn loops reinforce each of those intersections, the result is a weft knit reinforcement fabric of uncommon strength and flexibility for critical reinforcement needs.


  • Adds reliable, low-cost strength to extruded products or backings
  • Stable without additional coatings or chemistries
  • Available in custom widths from 12 to 200 inches

Weft insertion was originally created for wall lining and curtain applications because of its superior strength, low cost and wide width capability. It soon replaced woven polyester as the material of choice for low-slope roofing products for the same reasons.

Most people are familiar with weft knit reinforced fabric even if they don’t know it by name—it’s the strength behind widely-used large party tent structures and your patio grill cover.


  • Product development
  • Fabric forming
  • Aqueous coating
  • Custom edge-sealing technology
  • Anti-wick
  • Oil repellency
  • Soil release
  • Wickable
  • Flame resistance (FR)
  • Antibacterial
  • Anti-mildew
  • Antistatic
  • Optical brightening


  • Commercial low slope roofing
  • General reinforcement to improve strength
  • Grass-catcher bags
  • Geomembranes
  • Wall coverings
  • Military camouflage systems

A Closer Look at Highland

When quality control means everything

Highland doesn’t simply deliver on our customers’ needs. We internalize them. "Good enough" is never good enough.  Learn more

If you can define a need, we can create a high-performance solution for it.

Every customer need is different. Satisfying those needs takes a culture, not a catalog.  Learn more

What do we live for? A challenge.

We’re out on the edge of materials science and engineering. Now, watch us go even farther.  Learn more

How do we define “clean”?

A little bit lab. A little bit factory. A little bit operating room. Our attention to detail starts with a new definition of "clean."  Learn more

Technical excellence is our standard

Technical challenges are our bread and butter. Please do feed the engineers.  Learn more